CN1117410C - Folded antenna - Google Patents

Folded antenna Download PDF

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Publication number
CN1117410C
CN1117410C CN98123804A CN98123804A CN1117410C CN 1117410 C CN1117410 C CN 1117410C CN 98123804 A CN98123804 A CN 98123804A CN 98123804 A CN98123804 A CN 98123804A CN 1117410 C CN1117410 C CN 1117410C
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China
Prior art keywords
base
antenna
folded
element
frequency
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CN98123804A
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Chinese (zh)
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CN1233862A (en
Inventor
柳泽和介
押山正
水野浩年
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株式会社辽阔
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Priority to JP10136000A priority Critical patent/JPH11317612A/en
Priority to JP22370198A priority patent/JP3983384B2/en
Application filed by 株式会社辽阔 filed Critical 株式会社辽阔
Publication of CN1233862A publication Critical patent/CN1233862A/en
Application granted granted Critical
Publication of CN1117410C publication Critical patent/CN1117410C/en

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/30Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H01Q1/244Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/321Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364Creating multiple current paths
    • H01Q5/371Branching current paths

Abstract

从基座(20a)到末端侧处的第一折叠点(20b)处提供一线状或带状导体,它在末端侧和基座侧处的顺序平行折叠不少于一次,形成第一元件(20d);该导体在第一折叠点(20b)处分开,并且分开的导体类似地在末端侧和基座侧处的顺序平行折叠不少于一次,形成第二元件(20f)。 Provided from the base (20a) to a first fold point at the tip side (20b) at a line or strip conductor sequentially folded parallel not less than once at the tip side and the base side, forming a first element ( 2Od); the conductor (20b) in the open disposition the first fold point, and the conductors separated similarly sequentially folded parallel not less than once at the tip side and the base side, forming a second element (20f). 把从基座(20a)到第一元件(20d)的末端(20c)的有效长度设置为第一频率(f1)波长的四分之一,把从基座(20a)到第二元件(20f)的末端(20e)的有效长度设置为第二频率(f2)波长的四分之一。 The end (20c) from the base (20a) to a first element (2Od) set to a quarter of the effective length (f1) of the wavelength of the first frequency, the second element from the base (20a) to (20f ) the effective length of the tip (20e) is set as the second quarter wavelength of the frequency (f2).

Description

折叠式天线 Folded antenna

本发明涉及一种折叠式天线,其中能使天线沿轴向的物理长度变短,多谐振频率的调节变容易,及能以高增益进行在这些多个希望的频率下的发送和接收。 The present invention relates to a folded antenna, wherein the antenna in the axial direction to make shorter physical length, resonant frequency adjusting plurality facilitated, and the transmission and reception can be performed at a plurality of desired frequencies of these high-gain. 另外,本发明涉及一种使用折叠式天线、能够在多个希望频率下准备接收且在伸出状态时获得高的天线增益的天线装置。 Further, the present invention relates to a folded antenna, can be ready to receive the desired frequencies and obtaining high antenna gain when in the extended state of the antenna device in a plurality. 而且,本发明涉及一种使用天线装置的无线电设备,该天线装置适于用在双频带移动电话或类似设备中。 Further, the present invention relates to a radio apparatus using the antenna device, the antenna device is suitable for use in a dual band mobile phone apparatus or the like in.

图19表示以前由本发明者在日本专利申请No.160016/1996中提出的一种天线装置。 19 shows previously by the present inventors in Japanese Patent Application An antenna device No.160016 / 1996 are raised. 如图19中所示,这种天线装置包括一根折叠式天线10、一个鞭状天线元件12和一个螺旋状天线元件14。 As illustrated, this antenna device comprises a folded antenna 10, 19, a whip antenna element 12 and a helical antenna element 14. 折叠式天线10包括一个线状或带状导体,该导体沿从基座到末端侧的方向提供、在末端侧处平行于从基座到末端侧的方向折叠、然后在基座侧再次平行地折叠,以末端面对着末端侧终止。 The folded antenna 10 comprises a wire or strip-like conductor which is provided in a direction from the base to the tip side, folded parallel to the direction from the base to the tip side at the tip side, and then again parallel to the base side folded to the side facing the terminal end termination. 然后,把导体排列成具有一个在从基座到末端侧的方向上的轴线的圆柱形。 Then, the cylinder having a conductor arranged in a direction from the base to the tip side of the axis. 另外,螺旋状天线元件14沿相同轴线且与其成一单体地提供在鞭状天线元件12的末端上,并且这个单体可沿其轴向自由地从圆柱形折叠式天线10伸出、且可存储在其中。 Further, the helical antenna element 14 along the same axis therewith and provided on a single end of the whip antenna element 12, and this monomer can be freely projecting in its axial direction from the cylindrical folded antenna 10, and may stored. 而且,在伸出状态,鞭状天线元件12的基座部分与圆柱形折叠式天线10的末端部分是电容耦合的。 Further, in the extended state, the end portion of the base portion of the whip antenna element 12 and the cylindrical folded antenna 10 are capacitively coupled.

然后,把折叠式天线10从基座到末端的有效长度设置为第一频率f1的波长的四分之一。 Then, the effective length from the base 10 to the tip of the folded antenna set to a quarter wavelength of the first frequency f1. 这里,由于已经彼此平行折叠的诸导线之间浮动电容的结果,折叠式天线10起一根比其实际物理长度长的天线的作用。 Here, since the floating capacity between the results have been folded parallel to each other the wires, the folded antenna 10 plays a role that is longer than its actual physical length of the antenna. 另外,把从基座到第一折的有效长度设置为第二频率f2的波长的四分之一,并且把从基座到末端的有效长度设置为第二频率f2的波长的四分之三。 Further, the effective length from the base to the first fold disposed a quarter wavelength of a second frequency f2, and the effective length from the base to the tip is provided for a wavelength three quarters of the second frequency f2 . 第二频率f2高于第一频率f1,并且由于诸平行导线之间浮动电容增大的结果,由此使有效长度比其物理长度更长。 The second frequency f2 higher than the first frequency f1, and since such floating capacitance in parallel between the wire result of the increase, thereby making the effective length longer than its physical length. 因此,对第一频率f1谐振的折叠式天线10能谐振第二频率f2,第二频率f2比第一频率f1的三倍低。 Therefore, the folded antenna 10, a first resonance frequency f1 can be a second resonance frequency f2, the second frequency f2 lower than three times the first frequency f1. 然后,如图20中所示,通过把平行导线之间的浮动电容设置为适当值,有可能把第二频率f2设置为第一频率f1的两倍左右。 Then, as shown in FIG. 20, by setting the floating capacitance between parallel wires to an appropriate value, it is possible to set the second frequency f2 to approximately twice the first frequency f1.

另外,把从鞭状天线元件12的基座到螺旋状天线元件14的末端的有效长度设置为第一频率f1的波长的一半,而把从鞭状天线元件12的基座到其末端的有效长度设置为第二频率f2的波长的一半。 Further, from the base of the whip antenna element 12 to the end of the effective length of the helical antenna element 14 is set to half the wavelength of the first frequency f1, and from the base of the whip antenna element 12 to the distal end thereof an effective length is set to half the wavelength of the second frequency f2.

如图19中所示,在这种构造中,当鞭状天线元件12和螺旋状天线元件14从折叠式天线10伸出时,在第一频率f1下,最大电压发生在折叠式天线10的末端处,并且鞭状天线元件12的基座部分和折叠式天线10的末端在高频下变成由一个耦合电容C1来电气连接,使它能够在第一频率f1下发送和接收。 As shown in FIG. 19, in this configuration, when the whip antenna element 12 and helical antenna element 14 extending from the folded antenna 10, at a first frequency f1, maximum voltage occurs at the folded antenna 10 , and the tip end of the base portion of the whip antenna element 12 and the folded antenna 10 becomes a coupling capacitor C1 from the electrical connection to a high frequency, making it possible to send and receive at a first frequency f1. 另外,在第二频率f2下,最大电压发生在折叠式天线10的第一折叠点处,并且鞭状天线元件12的基座部分和折叠式天线10的第一折叠点在高频下变成由一个耦合电容C2来电气连接,使它能够在第二频率f2下发送和接收。 Further, at the second frequency f2, maximum voltage occurs at the first fold point of the folded antenna 10, and the first fold point of the base portion of the whip antenna element 12 and the folded antenna 10 becomes at high frequency electrically connected to a coupling capacitor C2, it can transmit and receive at the second frequency f2. 在第二频率f2下,螺旋状天线元件14起一个扼流圈的作用,而不是起一根天线的作用。 At a second frequency f2, 14 play a role choke helical antenna elements, rather than act as an antenna. 在存储状态,有可能仅使用折叠式天线10在第一频率f1和第二频率f2下发送和接收。 In the storage state, it is possible to transmit and receive 10 at the first frequency f1 and the second frequency f2 using only the folded antenna.

当把第一频率f1设置在900MHz的频带内,且把第二频率f2设置在1800MHz的频带内时,能够在双频带下,如GM/DCS或PDC/PHS下,使用一个单天线装置发送和接收。 When the first frequency f1 is provided in the 900MHz band and 1800MHz is within the frequency band can be taken off in a dual-frequency, such as GM / DCS or PDC / PHS, using a single transmitting antenna means and setting the second frequency f2 receive. 以这种方式,以前提出的技术也能在存储状态下包容双频带发送和接收、及准备接收,此外,在伸出状态下能获得高增益天线特性。 In this manner, the previously proposed technology can also accommodate dual-band transmission and reception of the stored state, and ready to receive, in addition, in the extended state can obtain high gain antenna characteristics.

然而,在以前提出的技术中,第一频率f1和第二频率f2都通过折叠式天线10谐振,折叠式天线10包括一个适当折叠的导体。 However, in the previously proposed technology, the first frequency f1 and second frequency f2 are resonant by the folded antenna 10, the folded antenna 10 comprises a conductor properly folded. 因此,当改变到折叠式天线10的末端的物理长度、或者平行导线之间的距离或平行部分的长度、或者到折叠式天线10的第一折叠部分的长度或类似长度,以便调节共振频率之一时,对其他的谐振频率有影响,使得难以把第一频率f1和第二频率f2调节到希望频率。 Accordingly, when the length of the first length of the folded portion or the like to change the physical length of the tip of the folded antenna 10, or parallel to the length or distance between the parallel portions of the wire, or the folded antenna 10, so as to adjust the resonance frequency temporarily, affect other resonant frequency, making it difficult to put the first frequency f1 and second frequency f2 is adjusted to the desired frequency. 另外,尽管在折叠式天线10的基座处的输入/输出阻抗能通过调节耦合电容C1和C2来调节,但难以单独地调节他们,因此难以把他们调节到一个最佳值。 Further, although the input at the base of the folded antenna 10 / output impedance by adjusting the coupling capacitances C1 and C2 is adjusted, it is difficult to adjust them individually, it is difficult to adjust them to an optimum value. 而且,由于从基座到第一折叠点的长度规定为高频(即,第二频率f2)波长的四分之一,所以不能使折叠式天线10在轴向较短。 Further, since the frequency of a predetermined length from the base to the first fold point (i.e., the second frequency f2) a quarter wavelength, so that the folded antenna 10 can not be shorter in the axial direction.

已经完成了本发明以便进一步改进以前提出的技术,并且目标在于提供一种折叠式天线,其中能单独地调节多个谐振频率,并且能使天线沿其轴线的长度较短。 The present invention has been completed in order to further improve the technology proposed previously and aims to provide a folded antenna, which can be adjusted individually a plurality of resonant frequencies, and to enable the antenna length shorter along its axis.

另外,本发明的一个目的在于提供一种使用天线的天线装置,该天线装置在天线伸出时能获得很高的天线增益,而在天线存储时能准备接收。 Further, an object of the present invention is to provide an antenna device using an antenna, the antenna device when the antenna is extended can be obtained in a high antenna gain when the antenna is stored and can prepare to receive.

另外,本发明的另一个目的在于提供一种使用天线装置的无线电设备,该设备适用于双频带移动电话等。 Further, another object of the present invention is to provide a radio apparatus using the antenna apparatus, the apparatus is suitable for dual band mobile phone.

另外,本发明的另一个目的在于提供一种其中能使存储时的总长度较短的可自由伸出和存储的天线。 Further, another object of the present invention is to provide a shorter overall length which allows the storage of the freely extendable and storable antenna.

另外,本发明的又一个目的在于提供一种使用可自由伸出和存储的天线的无线电设备,该设备能容易制得较小。 Further, the present invention is a further object to provide a radio apparatus can be used freely extendable and storable antenna, the apparatus can be easily made small.

为了实现以上目的,本发明的折叠式天线包括:一个第一元件,包括一个线状或带状导体,该导体提供在从天线基座指向其末端侧的方向上,该导体在末端侧至少折叠一次,并且平行于该方向布置;一个第二元件,包括在基座与在末端侧处的第一折叠点之间的一个点处、或在第一折叠点处分开的导体,并且至少折叠一次且平行于该方向布置;从基座到第一元件末端的有效长度被设置得使第一频率谐振,并且从基座到第二元件末端的有效长度被设置得使第二频率谐振。 To achieve the above objects, the folded antenna of the present invention comprises: a first element, comprising a wire or strip conductor which is provided in the direction toward its distal end side from the base of the antenna, the conductor is folded at least at the tip side once, and is disposed parallel to the direction; a second element, comprising at the base and between the first fold point at the tip side of a point, or at the first fold point conductors branched off, and folded at least once and is arranged parallel to this direction; effective length from the base to the tip of the first element being set so that a first resonance frequency, and is set so that the second resonance frequency to the effective length from the base end of the second element.

另外,本发明的折叠式天线可以包括:一个第一元件,包括一个线状或带状导体,该导体提供在从天线基座指向其末端侧的方向上,该导体在末端侧和基座侧顺序折叠不少于一次,并且平行于该方向布置;一个第二元件,包括在基座与在末端侧处的第一折叠点之间的一个点处、或在第一折叠点处分开的导体,并且在末端侧和基座侧顺序折叠不少于一次,且平行于该方向布置;从基座到第一元件末端的有效长度被设置得使第一频率谐振,并且从基座到第二元件末端的有效长度被设置得使第二频率谐振。 Further, the folded antenna of the present invention may comprise: a first element, comprising a wire or strip conductor which is provided in the direction toward its distal end side from the antenna base side and the end of the conductor base side sequentially folded at least once and arranged parallel to this direction; a second element, comprising at the base and between the first fold point at the tip side of a point, or at the first fold point apart disposition conductor and at the side and the base end side is folded sequentially not less than once, and is disposed parallel to the direction; the effective length from the base to the tip of the first element being set so that a first resonance frequency, and from the base to the second the effective length of the element is set so that the end of the second resonant frequency.

另外,本发明的可自由伸出和存储的天线包括:一个折叠式天线元件,包括一个线状或带状导体,该导体提供在从基座指向末端侧的方向上,该导体在末端侧至少折叠一次,并且平行于该方向布置,把从基座到折叠式天线元件末端的有效长度设置为第一频率波长的四分之一和第二频率波长的四分之三;一个杆状天线元件,它被如此提供以致可自由地沿折叠式天线元件的轴向运动,该折叠式天线元件给出圆柱形状;其中当杆状天线元件处于伸出状态时,杆状天线元件的基座侧与处在插入其中状态下的折叠式天线元件的圆柱形末端侧电容耦合,把从折叠式天线元件的基座到杆状天线元件的末端的有效长度设置为第一频率波长的四分之一和第二频率波长的四分之三。 Further, the freely extendable and storable antenna of the present invention comprises: a folded antenna element, comprising a wire or strip-like conductor which is provided in a direction from the base toward a tip side, at least at the end side of the conductor folded once, and a direction parallel to the arrangement, the effective length from the base to the tip is provided the folded antenna element a quarter wavelength of the second frequency and the first three quarters of the wavelength of the frequency; a rod antenna element it is thus provided that is free to move axially along the folded antenna element, the folded antenna element is given a cylindrical shape; wherein when the rod antenna element is in an extended state, the base side of the rod antenna element and at the end side of the insertion cylindrical capacitive coupling wherein the folded antenna element in a state, from the base of the folded antenna element to the tip of the rod antenna element effective length set to a quarter wavelength of a first frequency and three quarters of the wavelength of the second frequency.

另外,本发明的可自由伸出和存储的天线包括:一个折叠式天线元件,包括一个第一元件,该第一元件包括一个线状或带状导体,该导体提供在从基座指向末端侧的方向上,该导体在末端侧至少折叠一次,并且平行于该方向布置,和一个第二元件,第二元件包括在基座与在末端侧处的第一折叠点之间的一个点处、或在第一折叠点处分开的导体,并且折叠至少一次且平行于上述方向布置,把折叠式天线元件从基座到第一元件末端的有效长度设置为第一频率波长的四分之一,而把从基座到第二元件末端的有效长度设置为第二频率波长的四分之一;和一个杆状天线元件,它被如此提供以便可自由地沿折叠式天线元件的轴向运动,该折叠式天线元件给出圆柱形状;其中当杆状天线元件处于伸出状态时,杆状天线元件的基座侧与处在插入其中状态下的折叠式 Further, the freely extendable and storable antenna of the present invention comprises: a folded antenna element, comprising a first element, the first element comprises a wire or strip-like conductor which is provided from a base toward a tip side in the direction of the conductor is folded at least once at the tip side and arranged parallel to the direction, and a second element, a second element comprising a base and at a point between the first side of the folded end of a point, or branched off at the first fold point, and folded at least once and arranged parallel to said direction, the effective length of the folded antenna element from the base to the tip of the first element is set to a quarter wavelength of a first frequency, the effective length from the base to the tip of the second element is set to a quarter wavelength of a second frequency; and a rod antenna element, which is thus provided so as to be free to move axially of the folded antenna element, the folded antenna element is given a cylindrical shape; wherein when the rod antenna element is in an extended state, the rod antenna element and the base side in the folded state is inserted wherein 线元件的圆柱形末端侧电容耦合,把从折叠式天线元件的基座到杆状天线元件的末端的有效长度设置为第一频率波长的四分之一和第二频率波长的四分之三。 End side of the cylindrical wire capacitive coupling element, provided the effective length from the base of the folded antenna element to the tip of the rod antenna element is a first frequency and a second quarter-wavelength of the frequency of three-quarters of the wavelength .

图1是本发明折叠式天线的第一实施例的展开图;图2是图1中第一实施例的折叠式天线以圆柱形布置的外部立体图;图3是本发明折叠式天线的第二实施例的展开图;图4是本发明折叠式天线的第三实施例的展开图;图5是本发明折叠式天线的第四实施例的展开图;图6是本发明折叠式天线的第五实施例的展开图;图7是本发明折叠式天线的第六实施例的展开图;图8是本发明一种无线电设备的一个实施例的主要零件的纵向剖视图;图9a和图9b是图8中无线电设备的天线装置的等效电路图,图9a表明伸出状态,而图9b表明存储状态;图10是史密斯圆图的一个例子,表示在图9的天线装置中在第一频率和第二频率下的输入/输出阻抗;图11是示意图,表示其中把折叠式天线提供给一个无线电机壳以改进SAR的例子;图12a和图12b是根据本发明另一个实施例的一种天线装置在 FIG. 1 is a developed view of a first embodiment of the present invention, the folded antenna of the embodiment; FIG. 2 is an external perspective view of the embodiment of the folded antenna in a cylindrical arrangement of a first embodiment in FIG. 1; FIG. 3 is a folded antenna of the present invention, a second expanded view of a third embodiment of the present invention FIG. 4 is a folded antenna;; expanded view of the embodiment of FIG. 5 is a development showing a fourth embodiment of the folded antenna of the present invention; FIG. 6 is a folded antenna of the present invention Example five FIG expanded embodiment; FIG. 7 is a developed view of a sixth embodiment of the present invention, the folded antenna of the embodiment; FIG. 8 is a longitudinal sectional view of a device according to the present invention, in a radio main parts of an embodiment; FIGS. 9a and 9b is 8 is an equivalent circuit diagram of the antenna device of the radio device, and FIG. 9a show an extended state, and Fig 9b shows that storage state; FIG. 10 is an example of Smith chart showing the antenna apparatus of FIG. 9 in the first frequency and at a second frequency input / output impedance; FIG. 11 is a schematic view, showing where the folded antenna is provided to a radio cabinet to improve SAR of example; FIG. 12a and FIG. 12b is an antenna according to another embodiment of the present invention means 出状态下的等效电路图,图12a表明在第一频率下的操作,而图12b表明在第二频率下的操作;图13a和图13b是根据本发明又一个实施例的一种天线装置在伸出状态下的等效电路图,图13a表明在第一频率下的操作,而图13b表明在第二频率下的操作;图14a、图14b和图14c是示意图,表示本发明可自由伸出和存储的天线的第一实施例,图14a表明天线的伸出状态,图14b表明天线的存储状态,及图14c表明天线伸出状态的等效电路图;图15是一种圆柱形折叠式天线元件的一个例子的外部立体图;图16a和图16b是示意图,表示本发明可自由伸出和存储的天线的第二实施例,图16a表明天线的伸出状态,图16b表明天线的存储状态;图17a和图17b是示意图,表示本发明可自由伸出和存储的天线的第三实施例,图17a表明天线的伸出状态,图17b表明天线的存储状态;图18是提供在一种 In the equivalent circuit diagram of a state, FIG. 12a shows that operating at a first frequency, and Fig 12b shows that operating at a second frequency; FIGS. 13a and FIG. 13b is an antenna device of yet another embodiment of the present invention in accordance with equivalent circuit diagram of the extended state, FIG. 13a shows that operating at a first frequency, whereas Figure 13b shows that operating at a second frequency; FIG. 14a, FIG 14b and FIG 14c is a schematic view showing the present invention is freely extendable and storing the first embodiment of the antenna, Figure 14a shows that the antenna extended state, the storage state of the antenna of FIG. 14b, and 14c show an equivalent circuit diagram and FIG antenna extended state; FIG. 15 is a cylindrical folded antenna an external perspective view of an example of the element; FIGS. 16a and FIG. 16b is a schematic view showing the present invention, the freely extendable and storable antenna of the second embodiment, and FIG. 16a shows that the antenna extended state, FIG. 16b shows that a storage state of the antenna; 17a and FIG. 17b is a schematic view showing the present invention, the freely extendable and storable antenna of the third embodiment, and FIG. 17a shows that the antenna extended state, FIG. 17b shows that a storage state of the antenna; FIG. 18 is provided in one 线电设备中的本发明的一种可自由伸出和存储的天线、在天线伸出状态下的主要零件的纵向剖视图;图19是由本发明者以前提出的一种天线装置的伸出状态的等效电路图;及图20是示意图,表明图19中所示以前提出的天线中使用的折叠式天线的天线特性。 A wire electric apparatus of the present invention may be freely extendable and storable antenna, longitudinal sectional view of the main parts of the antenna extended state; FIG. 19 is an antenna proposed by the present inventor extended the previous device state an equivalent circuit diagram; and FIG. 20 is a diagram indicating the antenna characteristic of the folded antenna used in the previously proposed antenna shown in FIG. 19.

图1表示一种折叠式天线20,天线20包括一个线状或带状导体,该导体沿具有从基座20a到天线末端侧的轴线的方向排列,在末端侧处分成两部分,两部分之一在第一折叠点20b处折叠且平行于该轴线排列,然后顺序地在末端侧和基座侧处平行折叠,相对于轴线以直角按之字形延续,并以末端20c面对着末端侧终止。 FIG 1 shows an arrangement of a folding antenna 20, an antenna 20 comprising a wire or strip conductor, the conductor having along an axis from the base 20a to the antenna tip side direction, split into two portions at the tip side, the two portions a folded at the first fold point 20b and arranged parallel to the axis, then sequentially folded parallel at the tip side and the base side with respect to the shape of the press axis at right angles to the continuation and the side end face 20c terminates at end . 从导体分开的第一折叠点20b到末端20c的部分构成一个第一元件20d,并且把第一元件20d从基座20a到末端20c的有效长度设置为第一频率f1的波长的四分之一。 The first element constituting a portion 20d from the first fold point 20b to the end of a separate conductor 20c, and 20d from the first base member 20a is provided to the end of the effective length of a quarter wavelength 20c of the first frequency f1 . 另外,分开导体的另一部分类似地折叠且平行于轴线排列,在基座侧再次折叠且平行于轴线排列,然后顺序地在末端侧和基座侧处平行折叠,相对于轴线以直角按之字形延续,并以末端20e面对着末端侧终止。 Another part of the split conductor is similarly folded and arranged parallel to the axis, folded and arranged parallel to the axis again at the base side, and sequentially folded parallel at the tip side and the base side with respect to the shape of the press axis at right angles continuation, and end faces 20e in terminating side. 从导体分开的第一折叠点20b到末端20e的部分构成一个第二元件20f,并且把第二元件20f从基座20a到末端20e的有效长度设置为第二频率f2的波长的四分之一。 20f constituting a second element from the first fold point 20b to the end portion of the conductor 20e is separated, and the second element 20f is provided the effective length from the base 20a to the tip 20e of a quarter wavelength of the second frequency f2 .

然后,如图2中所示,图1的折叠式天线20绕一根在从基座20a到末端侧方向的轴线以圆柱形排列而提供。 Then, the folded antenna as shown in FIG. 2, FIG. 1 to 20 around a cylindrical arrangement is provided in a direction from the base 20a to the tip side of the axis. 通过在一个柔性基片上提供图1中所示的导体、利用诸如刻蚀或蒸汽淀积之类的适当技术、及把该导体绕由绝缘材料制成的圆柱形芯件或类似芯件的外表面缠绕,可以形成这个圆柱形折叠式天线20。 By providing on the conductor a flexible substrate shown in FIG. 1, with a suitable vapor deposition technique such as etching or the like, of the conductor and around the cylindrical core member made of insulating material or the like of the outer core member surface of the winding, the cylindrical form 20 can be folded antenna. 另外,图1中所示形状的导体可以由铜板或类似板冲压,并且弯成圆柱形。 Further, the conductor in the shape shown in Figure 1 may be formed of a copper plate or the like plate stamped and bent into a cylindrical shape. 或者,图1中所示的导体可以通过圆柱形芯件的外表面的电镀或类似方法适当地提供。 Alternatively, the conductor shown in FIG. 1 may be provided as appropriate by plating or the like to the outer surface of the cylindrical core member.

折叠式天线20可以包括密封材料。 The folded antenna 20 may comprise seal material. 密封材料通过把铜箔粘附在载体带上而产生。 The sealing material is adhered to a copper foil produced by the carrier tape. 密封材料压制成元件形状。 A sealing material pressed into a shape element. 因此,多余的铜箔与载体带一起除去。 Thus, the excess copper is removed together with the carrier tape. 然后,把覆盖带粘贴在已经冲压成元件形状的密封材料上方。 Then, the cover tape pasted over the seal material has been stamped into element shape.

把已经粘贴覆盖带的、元件形状的铜箔粘贴到圆柱形芯件的表面上。 The cover tape has been attached, the shape of the foil member attached to the upper surface of the cylindrical core member. 预先把容易粘附到芯件上的粘合剂涂敷到覆盖带和铜箔的粘贴表面上,由此能以简单的操作进行粘贴,并且能降低制造成本。 Previously adhered to the adhesive easily onto the core member applied to the adhesive surface of the cover tape and the copper foil, whereby pasting can be performed with a simple operation, and can reduce the manufacturing cost. 另外,根据这种方法,由于最终的折叠式天线的尺寸是稳定的,所以能使电气特性不变,带来其后需要较少调节的优点。 Further, according to this method, since the final dimensions of the folded antenna are stable, electrical characteristics can therefore unchanged, to advantage thereafter requires less adjustment.

在以上构造的折叠式天线20中,把第一元件20d的尺寸,如展开长度、平行导线之间的距离、平行长度等,设置为适当的尺寸,从而使第一频率f1能调节到希望的频率。 In the above configuration of the folded antenna 20, the size of the first element 20d such as deployment length, parallel to the distance between the parallel length wires, etc., to the appropriate size, such that the first frequency f1 can be adjusted to a desired frequency. 并且,把第二元件20f的尺寸,如展开长度、平行导线之间的距离、平行长度等,设置为适当的尺寸,从而使第二频率f2能调节到希望的频率。 Further, the size of the second element 20f such as the unfolded length, the distance between the parallel wires, the parallel length and the like, to the appropriate size, so that the second frequency f2 can be adjusted to a desired frequency. 结果,当调节第一元件20d时,对第二频率f2没有影响;而当调节第二元件20f时,对第一频率f1没有影响。 As a result, when the first adjusting member 2Od, no effect on the second frequency F2; when the second regulating member 20f, no effect on the first frequency f1. 因此,元件20d和20f能相互独立地调节。 Accordingly, elements 20d and 20f can be adjusted independently of each other. 这样,与图19中所示的以前提出的折叠式天线10相比,用本发明的折叠式天线20能更容易地调节第一频率f1和第二频率f2的操作。 Thus, FIG. 19 as compared with the previously proposed folded antenna 10 shown by the folded antenna 20 of the present invention can more easily manipulate the first frequency f1 and second frequency f2 is adjusted. 如图2中所示,由于折叠式天线20以圆柱形形状提供,所以它能制得较小,并且制成与螺旋天线相同的形状,还能够在第一频率f1和第二频率f2下发送和接收,甚至当处于图1中所示的展开状态时也是如此。 As shown in FIG. 2, since the folded antenna 20 is provided in a cylindrical shape so it can be made smaller and the same shape made of a helical antenna, but also can be transmitted at a first frequency f1 and second frequency f2 and receiving, even when in the deployed state shown in FIG. 1 as well. 这里,从基座20a到末端20c和到末端20e的有效长度不限于谐振频率波长的四分之一,它们可以是四分之一波长的奇数倍,如四分之三。 Here, from the base 20a to the tip 20c and to the tip 20e are not limited to, the effective length of a quarter wavelength of the resonant frequency, which may be an odd multiple of a quarter wavelength, such as three quarters. 另外,谐振频率的八分之一波长的奇数倍、或二分之一波长的奇数倍也是可接收的。 Further, an odd multiple of one-eighth wavelength of the resonant frequency, or an odd multiple of one-half wavelength is also acceptable. 因此,如果从基座20a到末端20c和到末端20e的有效长度,对于第一和第二频率f1和f2,是四分之一波长的奇数倍、或八分之一波长的奇数倍、或二分之一波长的奇数倍,则在基座20a处的输入/输出阻抗对于第一和第二频率f1和f2将基本上相同。 Thus, if from the base 20a to the tip 20c and 20e to the end of the effective length of the first and second frequencies f1 and f2, an odd multiple of a quarter wavelength, or an odd multiple of one eighth wavelength, or an odd multiple of one-half wavelength, the input 20a of the base / output impedance is substantially the same for the first and second frequencies f1 and f2. 因此,为使在基座20a处的输入/输出阻抗对于第一和第二频率f1和f2相同,不需要调节电路。 Therefore, at the input 20a of the base / output impedance of the first and second frequencies f1 and f2 same, no adjustment circuit. 此外,当不需要考虑在基座20a处的输入/输出阻抗时,相对于谐振频率的调节倍数可以是八分之一、四分之一或二分之一波长。 Further, when the input is not necessary to consider 20a of the base / output impedance with respect to the resonance frequency can be adjusted in multiples of one-eighth, one-quarter or one-half wavelength. 因此,当在基座20a处对于第一和第二频率f1和f2的输入/输出阻抗彼此不同时,一个用来调节电感等的电路可以提供在基座20a处,并且利用频率差引起的电感差,能使调节电路的输入/输出阻抗基本上相同。 Thus, when the circuit 20a of the base is not at the same time, an adjustable inductor equal to each other for the first and second frequencies f1 and f2 of the input / output impedance at the base 20a may be provided, and with a frequency difference caused by the inductance difference adjusting circuit can input / output impedance are substantially the same.

图3是本发明折叠式天线的第二实施例的展开图。 FIG. 3 is a development view of a second embodiment of the folded antenna of the present invention. 如图3中所示,第二实施例的折叠式天线30包括一个导体,该导体以之字形沿基座30a到第一折叠点30b之间的轴向提供。 As shown in FIG. 3, the axial direction between the folded antenna 30 of the second embodiment comprises a conductor which in zigzag along the base 30a to provide a first fold point 30b. 而且,导体在基座30a与第一折叠点30b之间的位置处分成两部分,并且分开的导体在一个分开点30g处折叠且平行于轴线排列。 Furthermore, the position of the conductor between the base 30a and the first fold point 30b is split into two portions, and separated in a separate conductor is folded at a point 30g and arranged parallel to the axis. 从第一折叠点30b到末端30c的部分构成一个第一元件30d,而从分开点30g到末端30e的部分构成一个第二元件30f。 30d constituting a first element from the first fold point 30b to the tip portion 30c, separated from the point 30g to the tip 30e constitutes a second element portion 30f. 然后,把从基座30a经第一折叠点30b到末端30c的有效长度设置为第一频率f1波长的四分之一,而把从基座30a经分开点30g到末端30e的有效长度设置为第二频率f2波长的四分之一。 Then, from the base 30a via the first fold point 30b to the tip 30c is set the effective length to a quarter wavelength of a first frequency f1, and to separate from the base 30a via the effective length is set to point 30g to the end 30e the second quarter of the wavelength of the frequency f2.

以与图1折叠式天线20相同的方式,具有以上构造的叠式天线30起能够在第一频率f1和第二频率f2下发送和接收的天线作用。 In the same folded antenna of FIG. 20 embodiment, the folded antenna 30 having the above configuration from an antenna capable of transmitting and receiving at the first frequency f1 and second frequency f2. 通过在基座30a与第一折叠点30b之间提供一个之字形导体,能使天线在轴向的总长度比图1中所示的折叠式天线20短。 By providing a zigzag-shaped conductor between the base 30a and the first fold point 30b, enables the overall length of the antenna in the axial direction of the folded antenna 20 is shorter than shown in FIG. 如果叠式天线30要独立地使用,则第一元件30d的末端30c仅需面对着图3中所示基座侧提供。 If the folded antenna 30 to be used independently, then the first end member 30c and 30d face only the base side as shown in FIG. 3 provided.

图4是本发明折叠式天线的第三实施例的展开图。 FIG 4 is a development view of a third embodiment of the folded antenna of the present invention. 如图4中所示,在第三实施例的折叠式天线40中,分开点40g靠近基座40a侧定位。 As shown in FIG. 4, in the folded antenna 40 of the third embodiment, a separate point 40g is positioned closer to the base 40a side. 在图4中,伴随标号的英文小写字母对应于图1-图3的类似部分,并且避免重复解释。 In FIG. 4, the English lower case letters accompanying the reference numerals correspond to similar parts in FIGS. 1-3, and to avoid repeated explanation. 这同样适用于下面的图5-图7。 The same applies to the following Figures 5-7.

图5是本发明折叠式天线的第四实施例的展开图。 FIG 5 is a folded antenna of the present invention is an expanded view of a fourth embodiment. 如图5中所示,在第四实施例的折叠式天线50中,从基座50a到第一折叠点50b以之字形平行于轴线伸展而提供导体,并且之字形的每一个以90度弯曲。 As shown, in the folded antenna 50 of the fourth embodiment from the base 50a to the first fold point 50b in a zigzag extending parallel to the axis of the conductor 5 is provided, and a zigzag in each of the 90 degree bend . 另一方面,这些之字形也可以弯曲成U形,以形成蛇状排列。 On the other hand, which may be zigzag bent in a U-shape to form a snake-like arrangement.

图6是本发明折叠式天线的第五实施例的展开图。 FIG 6 is a development showing a fifth embodiment of the folded antenna of the present invention. 在图6中第五实施例的折叠式天线60中,导体在第一折叠点60b处分成三部分。 In FIG. 6 the folded antenna 60 of the fifth embodiment, the conductor splits into three parts at the first fold point 60b. 分开导体部分中的两个构成一个第一元件60d和一个第二元件60f,象第一实施例中那样。 Two separate conductor parts constitute a first element 60d and a second element 60f, as in the first embodiment above. 分开导体的剩余部分在轴向构成,并且构成一个第三元件60i,第三元件60i从第一折叠点60b到末端60h伸展。 The remaining portions are separated in the axial direction of the conductor configuration, and constitutes a third element 60i, a third member 60i extending from a first fold point 60b to the tip 60h. 然后,把从基座60a到第一元件60d末端60c的有效长度设置为第一频率f1波长的四分之一,把从基座60a到第二元件60f末端60e的有效长度设置为第二频率f2波长的四分之一,以及把从基座60a到第三元件60i末端60h的有效长度设置为一个独立的第三频率f3波长的四分之一。 Then, from the base 60a to the end of the effective length of the first element 60d 60c disposed a quarter wavelength of a first frequency f1, from the base 60a to the tip 60e of the second element 60f is set to the effective length of the second frequency f2 quarter wavelength, and the set effective length from the base 60a to the tip 60h of the third element 60i is a separate one-quarter wavelength of the third frequency f3. 结果,第五实施例的折叠式天线60能够在三个频率--第一频率f1、第二频率f2和第三频率f3--下发送和接收。 As a result, a fifth embodiment of the folded antenna 60 can be in three frequency - transmission and reception at a first frequency f1, the second frequency f2 and third frequency f3--.

图7是本发明折叠式天线的第六实施例的展开图。 FIG 7 is a development view of a sixth embodiment of the folded antenna of the present invention. 在图7中,把第六实施例的折叠式天线70从基座70a到第一折叠点70b的有效长度设置成一个独立的第四频率f4波长的四分之一,并且此外,把从基座70a到第一元件70d末端70c的有效长度设置成第四频率f4波长的四分之三。 In FIG. 7, the folded antenna 70 of the sixth embodiment from the base 70a to set the effective length of the first fold point 70b into a separate fourth quarter wavelength frequency f4, and in addition, from the group a first holder member 70a to the tip 70c of the effective length of 70d set to three quarters of the wavelength of the fourth frequency f4. 第六实施例的折叠式天线70能够在四个频率--第一频率f1、第二频率f2、第三频率f3和第四频率f4--下发送和接收。 The folded antenna 70 of the sixth embodiment is capable of four frequency - the first frequency f1, transmitting and receiving the second frequency f2, the third frequency f3 and a fourth frequency f4--.

其次,参照图8-图11解释一种使用本发明折叠式天线的无线电设备。 Next, explained with reference to FIGS. 8 to 11 using a radio device antenna according to the present invention is folded. 图8是本发明一种无线电设备的一个实施例的主要零件的纵向剖视图。 FIG 8 is a longitudinal sectional view of a main part of an embodiment of the present invention in a radio apparatus. 图9表示图8中无线电设备的天线装置的等效电路图,图9a表明伸出状态,而图9b表明存储状态。 Equivalent circuit diagram of the antenna device in FIG. 9 shows a radio device in FIG. 8, FIG. 9a show an extended state, and Fig 9b shows that storage state. 图10是史密斯圆图的一个例子,表示在图9的天线装置中在第一频率和第二频率下的输入/输出阻抗。 FIG 10 is an example of Smith chart showing the input at a first frequency and a second frequency / output impedance of the antenna apparatus of FIG. 9. 图11是示意图,表示把折叠式天线提供给一个无线电机壳以改进SAR(吸收比速率)的例子。 FIG 11 is a diagram showing the folded antenna is provided to a radio cabinet to improve SAR (specific absorption rate) of the examples. 能使用根据已经描述的第一至第六实施例中任一个的一种折叠式天线,但举例来说,下面的解释使用第一实施例的折叠式天线。 The folded antenna can be used in accordance with one of the first to sixth embodiments have been described in any one, but for example, the following explanation using the folded antenna of the first embodiment.

在图8中,一个由绝缘材料组成的圆柱形芯件82在与其相同的轴线上,提供在一个由导电材料组成的大致圆柱形的供给金属部分80的末端侧,并且第一实施例的折叠式天线20绕芯件82的外表面缠绕,基座20a适当地直接电气连接到供给金属部件80上。 In FIG. 8, a cylindrical core member 82 made of an insulating material on its same axis, providing a supply of a substantially cylindrical metallic conductive material side end portion 80, and the folding of the first embodiment antenna 20 around the outer surface of the core member 82 is wound, the base 20a electrically connected directly to appropriately supply the metal member 80. 另外,一根C形树脂弹簧84提供在芯件82的末端侧处,并且提供一个盖住折叠式天线20的外缘、同时允许树脂弹簧84在轴向运动的覆盖件86,使覆盖件86的基座侧牢固地拧在供给金属部件80上。 Further, a C-shaped resin spring 84 provided at an end side of the core member 82 and the outer edge to provide a covering of the folded antenna 20 while allowing the resin spring 84 in the axial movement of the cover member 86, the covering member 86 the base side is firmly screwed onto the supply-feeding metal part 80. 此外,一个螺旋状天线元件90同轴地电气连接到一个鞭状天线元件88的末端,鞭状天线元件88包括柔性和导电的NiTi导线杆或类似杆,由此把两个元件90和88固定在一个单体中。 Further, a helical antenna element 90 is electrically connected coaxially to the end of a whip antenna element 88, the whip antenna element 88 comprises a flexible and conductive wire rod of NiTi or the like rods, whereby the two elements 90 and 88 fixed in one monomer. 这个单体能沿供给金属部件80和芯件82的轴向自由运动,并且能自由地伸出和存储。 The monomers can be fed along the free axial movement of the metal member 80 and the core member 82 and can be freely extended and stored. 一个由绝缘材料组成的大半径挡块92提供在鞭状天线元件88基座部分处,以便阻止鞭状天线元件88在伸出方向滑出。 A large radius of an insulating material 88 of stopper 92 provided at the base portion of the whip antenna element in order to stop the whip antenna element 88 from slipping out in the extend direction. 此外,一根树脂弹簧84卡到一个绕挡块92的外缘提供的槽中,以便在伸出状态时弹性地固定鞭状天线元件88。 In addition, a resin spring 84 to a card around the outer periphery of the stopper groove 92 provided in the block, so as to elastically fixed to the whip antenna element 88 in the extended state. 另外,一个具有与挡块92相同半径的大半径部分提供到一个螺旋覆盖件94的末端侧,螺旋覆盖件94由绝缘材料组成,并且覆盖着螺旋状天线元件90的外缘。 Further, a large radius portion having the same radius as the stopper 92 provided to the distal end 94 of a spiral cover member side, the cover coil 94 composed of an insulating material and covering the outer edge 90 of the helical antenna element. 树脂弹簧84卡到一个绕这个大半径部分的外缘提供的槽中,以便在存储状态弹性地固定鞭状天线元件88。 A resin spring 84 to the card slot around the outer periphery of the large radius portion provided so as to elastically fixed to the whip antenna element 88 in the storage state. 然后,一个具有大半径的装饰头96提供在螺旋覆盖件94的末端上,以便在存储方向运动时限定一个预定位置,而在伸出时用作手柄。 Then, a decorative head having a large radius end of the coil 96 provided on the cover member 94 so as to define a predetermined position when storing direction, and as a handle in the extended. 这就完成了使用折叠式天线20的天线装置的构造。 This completes the construction of an antenna device using the folded antenna 20.

另外,一个由导电材料组成的供给接收件100,通过插入模压或类似方法穿过一个无线电机壳98的一个侧壁而固定到其上。 Further, a conductive material is supplied to a receiving member 100, through a side wall of a radio housing 98 is secured thereto by insert molding or the like. 然后,把天线装置的供给金属部件80拧到供给接收件100中,由此把天线装置固定到无线电机壳98上。 Then, the supply-feeding metal part 80 of the antenna device is screwed into the supply-receiving member 100, thereby fixing the antenna device 98 to the radio cabinet. 另外,一个无线电电路安装在其上的基片102适当地提供在无线电机壳98内,并且一个由导电材料组成的、提供给基片102的板簧104弹性地接触供给接收件100的伸进无线电机壳98的部分。 Further, a radio circuit substrate mounted thereon 102 suitably provided in the radio housing 98, and is composed of a conductive material, is supplied to the supply plate spring 104 elastically contact the receiving substrate 102 extending into member 100 radio housing portion 98. 这个板簧104当然电气连接到无线电电路的高频级上,并且天线装置的供给金属部分80通过供给接收件100和板簧104电气连接到无线电电路上,由此形成一种无线电设备。 Of course, this plate spring 104 is electrically connected to the radio circuit on the high frequency level, and supplies the metal portion of the antenna device 80 of the plate spring receiving member 100 and 104 electrically connected to the radio circuit by the supply, thereby to form a radio apparatus.

然后,把折叠式天线20从基座20a到末端20c的有效长度设置为第一频率f1波长的四分之一,而把从基座20a到另一末端20e的有效长度设置为第二频率f2波长的四分之一。 Then, the effective length of the folded antenna 20 is provided from the base 20a to the tip 20c of a quarter wavelength of a first frequency f1, while the other end from the base 20a to 20e are set to the effective length of the second frequency f2 a quarter wavelength. 另外,把从鞭状天线元件88的基座到螺旋状天线元件90的末端的有效长度设置为第一频率f1波长的二分之一,而把从鞭状天线元件88的基座到其末端的有效长度设置为第二频率f2波长的二分之一。 Further, from the base of the whip antenna element 88 is set to the end of the effective length of the helical antenna element 90 is one-half wavelength of the first frequency f1, and from the base of the whip antenna element 88 to the end thereof the effective length is set to one-half wavelength of the second frequency f2.

在这种构造中,如图9(a)的伸出状态中所示,在第一频率f1下,最大电压出现在折叠式天线20的末端20c处,并且这个末端20c和鞭状天线元件88的基座部分由一个耦合电容C1电容耦合,因此第一频率f1以很高的天线增益谐振。 In this configuration, as shown in FIG 9 (a) is shown in an extended state, at the first frequency f1, maximum voltage occurs at the tip 20c of the folded antenna 20, and this tip 20c and the whip antenna element 88 a base portion by a coupling capacitor coupling capacitance C1, so the first frequency f1 to a high gain antenna resonance. 另外,在第二频率f2下,最大电压出现在折叠式天线20的另一末端20e处,并且这个末端20e和鞭状天线元件88的基座部分由一个耦合电容C2电容耦合,因此第二频率f2以很高的天线增益谐振。 Further, at the second frequency f2, maximum voltage occurs at the other end 20e of the folded antenna 20, and the base portion 20e and the tip of the whip antenna element 88 is coupled by a capacitive coupling capacitor C2, so that the second frequency f2 with a high gain antenna resonance. 这里,由于折叠式天线20的第一频率f1和第二频率f2都被调节成在最佳状态下谐振,所以天线装置在第一和第二频率f1和f2下都获得很高的天线增益。 Here, since the folded antenna of the first frequency f1 and second frequency f2 is 20 is adjusted to have a resonance in the best condition, the antenna means at first and second frequencies f1 and f2 are given a high antenna gain.

现在,在图9中所示的天线装置中,相对于第一频率f1和第二频率f2的输入/输出阻抗应该最好基本相同,并且此外,应该最好把他们设置为一个希望值,比如,约50欧姆。 Now, in the antenna apparatus shown in FIG. 9 with respect to the input of the first frequency f1 and second frequency f2 / output impedance should preferably be substantially the same, and in addition, they should preferably be set to a desired value, such as , about 50 ohms. 但是,如图10中所示,输入/输出阻抗在低的第一频率f1下倾向于超过希望值,而在高的第二频率f2下倾向于低于希望值。 However, as shown in FIG. 10, input / output impedance tends to exceed a desired value at the low first frequency f1, and in the second high frequency f2 is lower than the desired value tends. 这些输入/输出阻抗值随耦合电容C1和C2的值的增大而增大,以强化电容耦合程度。 These input / output impedance value with increasing values ​​of the coupling capacitors C1 and C2 is increased to enhance the degree of capacitive coupling. 因此,提供在折叠式天线20侧上第一频率f1谐振处的末端20c,要低于末端位置一个距离L,由此减小末端20c与鞭状天线元件88之间的耦合电容C1。 Thus, provided on the tip side of the folded antenna 20 is resonant at the first frequency f1 20c, lower than the terminal position by a distance L, thereby reducing the tip 20c and the coupling capacitance C1 between the whip antenna element 88. 结果,能把相对于第一频率f1的输入/输出阻抗减小和调节到希望值。 As a result, can first frequency f1 with respect to the input / output impedance is reduced and adjusted to a desired value. 另外,如有必要,第二频率f2谐振侧的末端20e能够设置成较靠近鞭状天线元件88的基座部分,以便增大耦合电容C2,由此增大对于第二频率f2的输入/输出阻抗。 Further, if necessary, the resonant frequency f2 of the second end side of the base portion 20e can be disposed closer to the whip antenna element 88, so as to increase the coupling capacitance C2, thereby increasing the second frequency f2 for the input / output impedance. 这样,通过适当地设置折叠式天线20的两个末端20c和20e,并且分别调节耦合电容C1和耦合电容C2,能容易地把相对于第一频率f1和第二频率f2的输入/输出阻抗设置为大致相同的希望值,如50欧姆。 Thus, by appropriately setting the two ends of the folded antenna 20c and 20e 20, and respectively adjusting a coupling capacitance C1 and the coupling capacitance C2, can be easily with respect to the first frequency f1 and second f2 frequency input / output impedance is set substantially the same desired value, such as 50 ohms. 为了调节耦合电容C1和耦合电容C2,不仅可以调节末端20c和20e相对于鞭状天线元件88的基座部分的位置,而且可以调节末端的相对面积,并且还对于对应于芯件82和挡块92的部分使用有适当介电常数的部件。 To adjust the coupling capacitance C1 and the coupling capacitance C2, not only can adjust the terminal 20c and 20e with respect to the base portion of the whip antenna element 88, and may be adjusted relative to the end area, and also for the corresponding core member 82 and the stopper portion 92 using appropriate dielectric constant member.

另外,如图9(b)中所示,即使当本发明的天线装置处于存储状态时,第一频率f1和第二频率f2也通过折叠式天线20谐振,这就适于准备接收等。 Further, as shown in Figure 9 (b), even when the antenna device according to the present invention is in the storage state, the first frequency f1 and second frequency f2 of the folded antenna 20 also by resonance, which is adapted to be ready to receive and the like. 而且,如上所述,由于第一频率f1和第二频率f2能容易地分别调节,所以在两个频率下都能获得比常规装置高的增益,即使在存储状态期间也是如此。 Further, as described above, since the first frequency f1 and second frequency f2 can easily be adjusted separately, so the two frequencies can be obtained at a higher gain than a conventional apparatus, but also even during a storage state.

当把第一频率f1设置在一个900MHz频带内,而把第二频率f2设置在一个1800MHz频带内时,一个单天线装置有可能在双频带下发送和接收,如GSM/DCS或PDC/PHS,象在常规装置中那样。 When the first frequency f1 is disposed within a 900MHz band and the second frequency f2 is disposed within a 1800MHz frequency band, a single dual frequency antenna device taken off the possible transmission and reception, such as GSM / DCS or PDC / PHS, as in the conventional apparatus. 此外,比在以前提出的技术中能更容易地调节发送和接收频率下的天线特性,使装置更适于批量生产。 In addition, more than easily adjust the antenna characteristics at the transmission and reception frequencies previously proposed in the art, and more suitable for mass production of the device.

另外,如图11中所示,通过把图8中天线装置的供给金属部件80被固定到无线电机壳98的供给接收件100上的结构、变成相对于无线电机壳98来预定天线装置绕轴线的位置的结构,可以把从折叠式天线20的基座20a到第一折叠点20b排列的导体,提供在相对着在使用期间靠近用户头部侧的侧上。 Further, as shown in FIG. 11, the receiving structure 100 by feeding the antenna device of the metal member 880 is secured to FIG supplied radio cabinet 98, into the radio cabinet 98 with respect to around the predetermined antenna device the position of the axis of the structure, can be arranged from the base 20a of the folded antenna 20 to the first fold point 20b conductor, provided on the opposite side of the user's head during use of the near side.

如图11中所示,当靠近用户头部侧使用移动电话时,通过把折叠式天线20提供给无线电机壳98,与常规装置相比有可能大大地提高SAR(吸收比速率),其中一个螺旋线圈提供到向外伸出以便准备接收的天线上。 As shown, when the side close to the user's head using a mobile phone, 98, 11 by the folded antenna 20 to the radio cabinet compared to conventional devices may greatly improve the SAR (specific absorption rate), where a outwardly projecting helical coil supplied to the antenna in order to be ready to receive. 其原因如下。 The reason is as follows. 首先,在伸出状态和存储状态下,第一频率f1和第二频率f2的谐振都在天线装置的基座部分处导致最大电流流动。 First, in the extended state and the stored state, the first frequency f1 and second frequency f2 are resonant current flow results in a maximum portion of the base of the antenna device. 现在,在常规螺旋线圈的情况下,从螺旋状元件的外缘到用户头部侧的距离较短,并且存在这样的可能性,流经该侧线圈部分的电流生成的磁场可能对用户头部侧有严重影响。 Now, in the case of the conventional helical coil, the distance from the outer edge of the helical element to a shorter side of the user's head, and there is a possibility, flowing through the coil portion generating a magnetic field of the current head of the user may side have a serious impact. 与此不同,在本发明折叠式天线20的情况下,最大电流流动出现在基座20a与第一折叠点20b之间的导体内,这在离用户头部侧最远的侧上。 On the other hand, in the case of the folded antenna 20 of the present invention, the maximum current flow occurs in the conductor between the base 20a and the first fold point 20b, which on the side furthest from the user's head side. 因此,可大大地减小电流这种流动生成的磁场对用户头部侧的影响。 Thus, the influence can be greatly reduced current flow generates a magnetic field which the user's head side. 试验证明,这种磁场的影响随距离增大而大大地减弱,并且甚至稍微的位置变化造成距离稍有增大,也能实现显著减小。 Tests show that the influence of such a magnetic field as the distance increases greatly attenuated, and even slight positional change caused by a slight increase in distance, a significant reduction can be achieved.

图12表示本发明另一个实施例的一种天线装置在伸出状态下的等效电路图,图12a表明在第一频率下的操作,而图12b表明在第二频率下的操作。 FIG 12 shows an equivalent circuit diagram showing another embodiment of the present invention, an antenna device of the embodiment in the extended state, FIG. 12a shows that operating at a first frequency, and Fig 12b shows that operating at a second frequency.

如图12中所示,在另一个实施例的天线装置中,鞭状天线元件88可自由地沿折叠式天线20的轴向运动,并且能自由地伸出和存储。 As shown, the antenna device In another embodiment, the whip antenna element 88 can be freely folded antenna 12 along the axial direction of movement 20, and can be freely extended and stored. 图9的螺旋状天线元件90没有提供。 FIG 9 helical antenna element 90 is not provided. 这里,当把第一频率f1设置在一个900MHz频带处,而把第二频率f2设置在一个1800MHz频带处时,能把鞭状天线元件88的有效长度设置为对应于第一频率f1的半个波长、和对应于第二频率f2的一个波长。 Here, when the first frequency f1 is disposed at a 900MHz band, the second frequency f2 and is provided at a 1800MHz frequency band, can the effective length of the whip antenna element 88 is set to correspond to half the first frequency f1 wavelength, and a wavelength corresponding to the second frequency f2. 至于折叠式天线20,把从基座20a到末端20c和20e的有效长度都设置为第一和第二频率f1和f2的波长的四分之一。 As regards the folded antenna 20, the effective length from the base 20a to the tip 20c and 20e are both set to a quarter wavelength of the first and second frequencies f1 and f2.

如图12(a)中所示,在伸出状态下,折叠式天线20的四分之一波长和鞭状天线元件88的半个波长通过耦合电容C1电容耦合,由此第一频率f1谐振。 As shown in (a) in FIG. 12, in the extended state, the quarter wavelength of the folded antenna 20 and the whip antenna element 88 by capacitive coupling half wavelength coupling capacitance C1, whereby the first resonance frequency f1 . 另外,如图12(b)中所示,折叠式天线20的四分之一波长和鞭状天线元件88的一个波长通过耦合电容C2电容耦合,由此第二频率f2谐振。 Further, as shown in (b) in FIG. 12, a quarter-wavelength of the wavelength of the folded antenna 20 and the whip antenna element 88 via a capacitor coupling the coupling capacitance C2, whereby the second resonance frequency f2.

当第二频率f2是两倍于第一频率f1时,比如,分别为1800MHz和900MHz,能应用图12中所示的另一个实施例的天线装置。 When the second frequency f2 is twice the first frequency f1, for example, they are 1800MHz and 900MHz, the antenna device of another embodiment shown in FIG. 12 can be applied in the embodiment. 而且,当第二频率f2是第一频率f1的整数倍(例如,三倍)时,能应用图12的天线装置的技术。 Further, when the second frequency f2 is an integer multiple of the first frequency f1 (e.g., three times), the technology can be applied to the antenna device 12 of FIG.

图13示出本发明又一个实施例的一种天线装置在伸出状态下的等效电路图,图13(a)表明在第一频率下的操作,而图13(b)表明在第二频率下的操作。 13 shows an equivalent circuit diagram illustrating an antenna device of yet another embodiment of the present invention in the extended state, FIG. 13 (a) indicates that the operation at a first frequency, and Fig. 13 (b) shows that the second frequency operating under.

如图13中所示,又一个实施例的天线装置在如下方面类似于图12,即鞭状天线元件88可自由地沿折叠式天线20的轴向运动,并且能自由地伸出和存储,且没有提供图9的螺旋状天线元件90没有。 Antenna device, a further embodiment of the FIG. 13 embodiment in the following respects similar to FIG. 12, i.e., the whip antenna element 88 is free to move axially of the folded antenna 20 and can be freely extended and stored, 9 and does not provide a helical antenna element of FIG. 90 no. 然而,图13实施例的操作状态不同。 However, different operating states of the embodiment 13 of FIG. 在伸出状态下,鞭状天线元件88的基座部分与折叠式天线20的末端部分重叠,从而增大电容耦合程度。 In the extended state, the base portion of the whip antenna element 88 with the end portion of the folded antenna 20 overlap, thereby increasing the degree of capacitive coupling. 另外,如图13(a)中所示,对于第一频率f1,把从折叠式天线20的基座20a到鞭状天线元件88的末端的有效长度设置为波长的四分之一。 Further, as shown in (a) in FIG. 13, the first frequency f1, the base of the folded antenna 20 from the end 20a to the effective length of the whip antenna element 88 is set to a quarter wavelength. 并且,如图13(b)中所示,对于第二频率f2,把从折叠式天线20的基座20a到鞭状天线元件88的末端的有效长度设置为波长的四分之三。 Further, as shown in (b) in FIG. 13, for the second frequency f2, the base of the folded antenna 20 from the end 20a to the effective length of the whip antenna element 88 is set to three quarters of the wavelength. 至于折叠式天线20,把从基座20a到末端20c和20e的有效长度都设置为第一和第二频率f1和f2的波长的四分之一。 As regards the folded antenna 20, the effective length from the base 20a to the tip 20c and 20e are both set to a quarter wavelength of the first and second frequencies f1 and f2.

在这种构造中,根据试验,电流流到在鞭状天线元件88的基座处的耦合电容,并且操作不同于图9和图12中所示的天线装置。 In this configuration, the antenna test apparatus, a current flows in the whip antenna element 88 of the coupling capacitance at the base, and 12 shown in FIGS. 9 and differs from the operation according to FIG. 因此,我们能假定折叠式天线20的电感分量、耦合电容的电容分量和鞭状天线元件88的电感分量以串联谐振,由此,如图13(a)和图13(b)中所示,第一频率f1和第二频率f2都谐振。 Thus, we can assume that the inductance component of the inductance component of the folded antenna 20, the capacitance component of the coupling capacitance and the whip antenna element 88 in series resonance, whereby, as shown in (b) in FIG. 13 (a) and FIG. 13, first frequency f1 and second frequency f2 are resonant.

在以上实施例的解释中,能容易地理解,如果供给金属部分80和板簧104为天线装置和无线电装置提供天线功能,则起折叠式天线20的天线的作用的基座20a不是物理基座本身,而是板簧104与基片102之间的连接点。 In the embodiment explained in the above embodiment can be easily understood, if the supply-feeding metal part 80 and the plate spring 104 provide the antenna function for the antenna device and radio device, the function as an antenna of the folded antenna 20 of the base 20a of the base is not a physical itself, but the leaf springs 104 and the substrate 102 between the point of attachment.

图14a、图14b和图14c是示意图,表示本发明可自由伸出和存储的天线的第一实施例,图14a表明天线的伸出状态,图14b表明天线的存储状态,及图14c表明天线伸出状态的等效电路图。 FIG. 14a, FIG 14b and FIG 14c is a schematic diagram of the present invention showing a first embodiment of the freely extendable and storable antenna of the embodiment, FIG. 14a shows that the antenna extended state, the storage state of the antenna of FIG. 14b, and 14c show an antenna and FIG. an equivalent circuit diagram of the extended state. 图15是一种圆柱形折叠式天线元件的一个例子的外部立体图。 FIG 15 is an external perspective view of an example of a cylindrical folded antenna element.

如图15中所示,一个折叠式天线元件110是圆柱形的。 As shown in FIG. 15, a folded antenna element 110 is cylindrical. 然后,一个杆状天线元件112提供在与圆柱形折叠式天线元件110相同的轴上,以便可自由地沿轴向运动。 Then, a rod-like antenna element 112 is provided with the same axis as the cylindrical folded antenna element 110 so as to be free to move axially. 第一实施例的折叠式天线元件110由一个线状或带状导体组成,提供在从基座到末端侧的方向上,并且这个导体在末端侧至少折叠一次,且平行于上述方向以之字形排列而布置。 The folded antenna element 110 of the first embodiment of a wire or strip-shaped conductors, provided in a direction from the base to the tip side, and this conductor is folded at least once at the tip side, and is parallel to the direction in a zigzag arranging arrangement. 另外,杆状天线元件112在伸出方向和存储方向的运动当然要适当地限制,以防止杆状天线元件112滑出。 Further, the rod antenna element 112 to appropriately limit the course direction and extending in the direction of the storage movement, the rod antenna element 112 to prevent from slipping out. 此外,根据本发明的可自由伸出和存储的天线,在伸出状态下,折叠式天线元件110的末端侧与杆状天线元件112的基座侧重叠,从而建立一种其中杆状天线元件112的基座侧成为插入到折叠式天线元件110的末端侧中的状态,并因此,限制在伸出方向的运动。 Further, according to the freely extendable and storable antenna of the present invention, in the extended state, the base side end 110 side of the folded antenna element of the rod antenna element 112 overlap, thereby establishing a method in which a rod antenna element base side 112 of the tip 110 is fitted in the state of the side of the folded antenna element, and thus limiting movement in the protruding direction.

然后,把折叠式天线元件110从基座到末端的有效长度设置为第一频率f1波长(波长λ1)的四分之一和第二频率f2波长(波长λ2)的四分之三。 Then, the effective length from the base 110 to the tip of the folded antenna element is set to a quarter f1 (wavelength lambda) of a first frequency and a second frequency f2 (wavelength [lambda] 2) of three-quarters. 另外,折叠式天线元件110从基座到第一折叠点的尺寸,比如,是约25mm。 Further, the folded antenna element 110 from the base to the first fold point size, for example, about 25mm. 而且,杆状天线元件112的尺寸,比如,是110mm,在伸出时有10mm与折叠式天线元件110的末端侧重叠,并且从折叠式天线元件110的基座到杆状天线元件112的末端的尺寸,当伸出时是约125mm。 Also, the size of the rod antenna element 112, for example, is 110mm, with a 10mm overlaps with the end side 110 of the folded antenna element in the extended, and from the base of the folded antenna element 110 to the tip 112 of the rod antenna element size, when extended is approximately 125mm. 这里,作为一个例子,第一频率f1是900MHz,而第二频率f2是1800MHz。 Here, as an example, the first frequency f1 is 900MHz, and the second frequency f2 is 1800MHz.

如在图14(b)的存储状态中所示,根据本构造,由于第一和第二频率f1和f2通过一个单折叠式天线元件110谐振,所以准备接收是可能的。 As shown in FIG. 14 (b) a storage state in accordance with the present configuration, since the first and second frequencies f1 and f2 by a single folded antenna element 110 resonate, it is possible to prepare to receive. 并且,由于折叠式天线元件110的有效长度是第一频率f1波长的四分之一和第二频率f2波长的四分之三,所以在每种情况下的输入/输出阻抗是约50欧姆。 Further, since the effective length of the folded antenna element 110 is a quarter of the wavelength of the second frequency f2 and three quarters of the wavelength of the first frequency f1, so that in each case an input / output impedance is approximately 50 ohms. 在存储状态下,由于杆状天线元件112的末端部分离折叠式天线元件110足够远以避免任何电气耦合,所以杆状天线元件112不起天线的作用,并因此对天线特性没有影响。 In the stored state, since the end portion of the rod antenna element 110, far enough away from the folded antenna element in order to avoid any electrical coupling, it can not afford 112 as an antenna rod antenna element, and thus has no effect on antenna characteristics. 另外,在存储状态下,甚至当杆状天线元件112的末端部分离折叠式天线元件110足够近以致于引起与它的电容耦合或介电耦合时,也只需设置从叠式天线元件110的基座到杆状天线元件112的基座的有效长度,使在第一频率f1和第二频率f2的频带内的频率不谐振。 Further, in the storage state, even when the end portion of the rod antenna element 110, close enough to the folded antenna element so as to cause it to capacitive coupling or dielectric coupling also provided only from the folded antenna element 110 the effective length of the base 112 to the base of the rod antenna element, within the frequency band of the first frequency f1 and second frequency f2 are not resonant.

另外,如在图14(a)的伸出状态中所示,折叠式天线元件110的末端部分和杆状天线元件112的基座部分通过较高数值的耦合电容C电容耦合。 Further, as shown in FIG projecting 14 (a) state, the base portion of the tip portion of the folded antenna element 110 and the rod antenna element 112 by capacitive coupling of the coupling capacitance C higher value. 如图14(c)中所示,相应等效电路是一个包括一个电感L1、耦合电容C和一个电感L2的串联谐振电路。 As shown in (c) in FIG. 14, it is a corresponding equivalent circuit comprising an inductor L1, the coupling capacitance C, and a series resonant circuit of inductor L2. 这里,在伸出状态下,从叠式天线元件110的基座到杆状天线元件112的末端的物理长度是约125mm,比第一频率f1的四分之一波长(83.3mm)长,但提供在中间的耦合电容C把有效长度缩短到第一频率f1波长的四分之一。 Here, in the extended state, is approximately 125mm, (83.3mm) is longer than a quarter wavelength of the first frequency f1 from the base of the folded antenna element 110 to the end of the physical length of the rod antenna element 112, but provided in the middle of the effective length of the coupling capacitance C is reduced to a quarter wavelength of the first frequency f1. 类似地,提供在中间的耦合电容C把相对于第二频率f2的有效长度缩短到波长的四分之三。 Similarly, provided in the middle of the coupling capacitance C with respect to the effective length of the second frequency f2 is reduced to three quarters of the wavelength. 因此,第一频率f1和第二频率f2在天线伸出状态下谐振,使发送和接收成为可能。 Accordingly, the first frequency f1 and second frequency f2 in the antenna extended state resonators, transmission and reception become possible. 此外,相对于第一频率f1和第二频率f2的有效长度分别是四分之一波长和四分之三波长,并且在每种情况下的输入/输出阻抗是约50欧姆,这与存储状态下的情况基本上相同。 Further, with respect to the effective length of the first frequency f1 and second frequency f2 are a quarter wavelength and three quarters of a wavelength, and in each case the input / output impedance is about 50 ohms, which storage state the case is substantially the same. 因此,通过把具有约50欧姆输入/输出阻抗的、本发明的可自由伸出和存储的天线,连接到无线电电路和一根具有约50欧姆输入/输出阻抗的同轴电缆上,能以高效率进行信号传送,而不需要调节电路。 Thus, by having about 50 ohm input / output impedance, the present invention can be freely extendable and storable antenna, connected to a radio circuit and a coaxial cable having about 50 ohm input / output impedance can be high efficient signal transmission, without the need for regulation circuitry.

因此,可自由伸出和存储的天线在存储状态下的总长度与以前提出的装置相比,通过减小杆状天线元件112的物理长度来缩短,使本发明的天线适于用在小型移动电话装置或类似装置中。 Thus, the total length of the freely extendable and storable antenna in the stored state as compared with the previously proposed apparatus, is shortened by reducing the physical length of the rod antenna element 112, the antenna of the present invention is suitable for use in small mobile the telephone apparatus or the like.

折叠式天线元件110和杆状天线元件112相对于第一频率f1和第二频率f2的有效长度比如能根据如下顺序设置。 The folded antenna element 110 and the rod antenna element 112 with respect to the effective length of the first frequency f1 and the second frequency f2 such as can be provided according to the following sequence. 首先,把折叠式天线元件110从基座到末端的展开物理长度设置为约第一频率f1波长的四分之一,并且然后以之字形排列。 First, the folded antenna element 110 is provided to expand the physical length from the base to the tip is about a quarter of the wavelength of the first frequency f1, and then in a zigzag arrangement. 尽管在之字形折叠式天线元件110的导体之间出现浮动电容,但这不大影响低的谐振第一频率f1。 Although floating capacitance occurs between the conductors in the zigzag folded antenna element 110, but little effect on the resonance of the first low frequency f1. 然而,导体之间的这种浮动电容大大地影响第二频率f2,能显著缩短从基座到末端的有效长度。 However, this floating capacitance between conductors greatly affects the second frequency f2, can significantly shorten the effective length from the base to the tip. 因此,当调节导体之间的浮动电容时,比如通过调节之字之间的空隙和他们的平行长度等,有可能把有效长度设置为第二频率f2波长的四分之三。 Thus, when the floating capacitance between the conductors is adjusted, such as by adjusting the gap between the zigzags and their parallel length and the like, it is possible to set the effective length to three quarters of the wavelength of the second frequency f2.

其次,将详细说明在天线伸出状态下设置相对于第一频率f1和第二频率f2的有效长度的方法。 Next, a method will be described in detail with respect to the effective length of the first frequency f1 and the second frequency f2 in the antenna extended state is provided. 在天线伸出状态下,当增加折叠式天线元件110与杆状天线元件112之间的重叠时,谐振频率较高,因此增大耦合电容C;当重叠减小时,谐振频率较低,因此减小耦合电容C。 In the antenna extended state, when increasing the overlap between the folded antenna element 112 and the rod antenna element 110, the higher resonance frequency, thus increasing the coupling capacitance C; when the overlap is reduced, the resonance frequency is low, thus reducing small coupling capacitance C. 因此,把伸出状态下从叠式天线元件110的基座到杆状天线元件112的末端的物理长度首先设置为比第一频率f1波长的四分之一长。 Accordingly, the extended state from the base of the folded antenna element 110 to the end of the physical length of the rod antenna element 112 is first set to a quarter wavelength longer than the first frequency f1. 其次,通过调节折叠式天线元件110与杆状天线元件112之间的重叠,来调节耦合电容C的电容值,并且把有效长度设置为第一频率f1波长的四分之一。 Secondly, by adjusting a quarter of the folded antenna element 110 overlaps between the rod antenna element 112 to adjust the coupling capacitance C, and the effective length is set to the first frequency f1 wavelength. 然后,这种状态下,如果以频率波长四分之三的有效长度谐振的频率比第二频率f2高,则稍微减小折叠式天线元件110与杆状天线元件112之间的重叠,以降低电容值,并由此降低以四分之三波长谐振的频率,直到它与第二频率f2匹配。 Then, in this state, if the effective length of three quarters of a wavelength of a frequency higher than the resonant frequency of the second frequency f2, 110 is slightly reduced overlap between the folded antenna element 112 and the rod antenna element, to reduce the capacitance values, and thereby reducing the resonance frequency of the three quarter wavelength until it matches the second frequency f2. 作为这种调节的结果,以四分之一波长谐振的频率降低到比第一频率f1低,但这对第二频率f2没有什么影响。 As a result of this adjustment, a quarter wavelength of the resonant frequency is reduced to lower than the first frequency f1, but this has no effect on the second frequency f2. 另外,稍微减小杆状天线元件112的长度,并且升高以波长四分之一谐振的频率,以匹配第一频率f1。 Further, the length of the rod is slightly reduced antenna element 112, and a quarter of a wavelength of a resonant frequency is increased to match the first frequency f1. 作为这种调节的结果,以波长四分之三有效长度谐振的频率较高,但这种影响比对第一频率f1的影响小。 As a result of this adjustment, the effective length of three quarters of the wavelength in the higher resonance frequency, but this effect is smaller than the effect on the first frequency f1. 通过重复调节折叠式天线元件110和杆状天线元件112的耦合电容C、和杆状天线元件112的长度,有可能把从叠式天线元件110的基座到杆状天线元件112的末端的有效长度设置为:对于第一频率f1为四分之一波长,而对于第二频率f2为波长的四分之三。 By repeating adjusting the folded antenna element 110 and the rod coupling capacitance C of the antenna element 112, and the length of the rod antenna element 112, it is possible to effectively from the base of the folded antenna element 110 to the tip of the rod antenna element 112 length is set to: a first frequency f1 to a quarter wavelength, for the second frequency f2 to three quarters of the wavelength. 另外,在伸出状态下,把从叠式天线元件110的基座到杆状天线元件112的末端的有效长度设置为第一频率f1波长的四分之一。 Further, in the extended state, the effective length from the base of the folded antenna element 110 to the end of the rod antenna element 112 is set to a quarter wavelength of a first frequency f1. 在这种状态下,如果在有效长度是波长四分之三时的谐振频率比第二频率f2低,则通过增大折叠式天线元件110与杆状天线元件112之间的重叠、延长杆状天线元件112等,能进行与以上类似的调节。 In this state, if the effective length is three quarters of a wavelength at the resonance frequency is lower than the second frequency f2, by increasing the folded antenna element 110 and the overlap between the rod antenna element 112, the rod-like extension the antenna element 112 and the like, can be adjusted similar to the above. 批量生产设计基于遵循上述方法的试验得到的尺寸。 Based on the size of the test batch following the above method obtained.

其次,参照图16a和图16b,解释本发明可自由伸出和存储的天线的第二实施例。 Next, with reference to Figures 16a and 16b, the present invention can be explained the second embodiment of the freely extendable and storable antenna. 图16a和图16b表示本发明可自由伸出和存储的天线的第二实施例,图16a表明天线的伸出状态,图16b表明天线的存储状态。 Figures 16a and 16b show a second embodiment of the present invention, the antenna can be freely extended and stored, Figure 16a shows that the antenna extended state, FIG. 16b shows that a storage state of the antenna.

在图16a和图16b中,一个杆状天线元件122提供在与一个圆柱形折叠式天线元件120相同的轴上,以便可在轴向自由地运动。 In FIGS. 16a and 16b in a rod-like antenna element 122 provided on the same shaft as a cylindrical folded antenna element 120 so as to be freely movable in the axial direction. 第二实施例的折叠式天线元件120包括一个提供在从基座到末端侧方向上的线状或带状导体,该导体在末端侧处至少折叠一次,并且以之字形平行于上述方向排列,形成一个第一元件124。 The second embodiment of the folded antenna element 120 comprises a providing to the arrangement direction from the base to the line or strip conductor on the side of the direction of the end, the conductor is folded at least once at the tip side, parallel and in a zigzag, a first element 124 is formed. 此外,导体在离开基座的末端侧处的第一折叠点处分开,至少折叠一次,并且以之字形平行于上述方向排列,由此形成一个第二元件126。 Further, the conductor away from the base in a first fold point at the tip side of the open disposition, folded at least once, and arranged in zigzag parallel to the above direction, thereby forming a second element 126. 换句话说,第二元件126可以在基座与末端侧处的第一折叠点之间的一个位置处分开。 In other words, the second member 126 can start at a disposition position between the base and the first fold point at the tip side. 另外,杆状天线元件122包括一个在基座侧处的鞭状天线元件128、和一个提供在其末端侧上的螺旋状天线元件130。 Further, the antenna element 122 includes a rod 128, and a helical antenna element 130 provided on its distal end side of the whip antenna element at the base side. 然后,在伸出和存储状态下,杆状天线元件122的运动当然受到限制,以防止它滑出。 Then, in the extended state and the storage, movement of the rod antenna element 122, of course, be limited to prevent it from slipping out. 而且,在伸出状态下,折叠式天线元件120的末端侧与杆状天线元件122的基座侧重叠,从而杆状天线元件122成为插入其中,限制其在伸出方向的运动。 Further, in the extended state, the tip side of the rodlike antenna element 120 of the folded antenna element 122 overlaps the base side, so that the rod antenna element 122 becomes inserted therein, to limit its movement in the extending direction.

然后,把折叠式天线元件120从基座到第一元件124的末端的有效长度设置为第一频率f1波长的四分之一,而把从基座到第二元件126的末端的有效长度设置为第二频率f2波长的四分之三。 Then, the effective length from the base 120 to the tip 124 of the first element of the folded antenna element is set to a quarter wavelength of a first frequency f1, and the effective length from the base to the tip of the second setting member 126 a second frequency f2 to three quarters of the wavelength. 折叠式天线元件120从基座到第一折叠点的尺寸是,举例来说约25mm。 The folded antenna element 120 from the base to the first fold point size is about 25mm for example. 然后,把杆状天线元件122的尺寸设置成比第一实施例短一个相当于螺旋状天线元件130的量。 Then, the dimensions of the rod antenna element 122 is set to a first embodiment by an amount shorter than the embodiment of helical antenna element 130 corresponds. 另外,在伸出状态下,鞭状天线元件128的基座侧在杆状天线元件122的基座侧与折叠式天线元件120的基座侧重叠约10mm。 Further, in the extended state, the base side of the whip antenna element 128 overlaps approximately 10mm from the base side of the folded antenna element 120 at the base side of the rod antenna element 122. 结果,在伸出状态下,把从折叠式天线元件120的基座到杆状天线元件122的末端的物理长度能设置为比第一实施例中的短。 As a result, in the extended state, from the base of the folded antenna element 120 to the physical length of the tip of the rod antenna element 122 can be set to be shorter than in the first embodiment.

根据图16a-图16b所示的构造,在天线存储状态下,折叠式天线元件120的第一元件124和第二元件126以第一频率f1和第二频率f2谐振,由此准备接收是可能的。 According to the configuration shown in FIGS. 16a- 16b in FIG, in the antenna stored state, the folded antenna element 124 of the first member 120 and second member 126 at a first frequency f1 and the second resonance frequency f2, whereby reception is possible to prepare of. 另外,在天线伸出状态下,从折叠式天线元件120的基座到杆状天线元件122的末端的有效长度是第一频率f1波长的四分之一、和是第二频率f2波长的四分之三。 Further, in the antenna extended state, the effective length from the base of the folded antenna element 120 to the end of the rod antenna element 122 is a quarter wavelength of a first frequency f1, the second frequency f2 and a wavelength is four thirds. 而且,由于折叠式天线元件120包括第一元件124和第二元件126,所以第一和第二元件124和126的有效长度能独立地调节为第一和第二频率f1和f2波长的四分之一,使调节较容易。 Further, since the folded antenna element 120 comprises a first member 124 and second member 126, the effective length of the first and second elements 124 and 126 can be independently adjusted for the first and second frequencies f1 and f2 quarter wavelength one of the adjustment easier. 此外,通过把螺旋状天线元件130提供到杆状天线元件122的末端部分,能缩短螺旋状天线元件130的物理长度,并且能使可自由伸出和存储的天线在天线存储状态下的总长度比第一实施例的短。 Further, by providing the helical antenna element 130 to the end portion of the rod antenna element 122 can be made shorter physical length of the helical antenna element 130, and to enable the total length of the freely extendable and storable antenna in the antenna stored state Example shorter than the first embodiment.

其次,参照图17a和图17b,解释本发明可自由伸出和存储的天线的第三实施例。 Next, with reference to FIGS. 17a and 17b, the present invention is explained a third embodiment the freely extendable and storable antenna embodiment. 图17a和图17b是示意图,表示本发明可自由伸出和存储的天线的第三实施例,图17a表明天线的伸出状态,图17b表明天线的存储状态。 17a and FIG. 17b is a schematic view showing the present invention, the freely extendable and storable antenna of the third embodiment, and FIG. 17a shows that the antenna extended state, FIG. 17b shows that a storage state of the antenna.

在图17a和图17b中,一个杆状天线元件142提供在与一个圆柱形折叠式天线元件140相同的轴上,以便可在轴向自由地运动。 In FIGS. 17a and FIG. 17b, a rod-like antenna element 142 is provided with the same axis as a cylindrical folded antenna element 140 so as to be freely movable in the axial direction. 第三实施例的折叠式天线元件140类似于第一实施例的折叠式天线元件110,但不同之处在于以之字形从基座到第一折叠点排列。 The folded antenna element 140 is similar to the first embodiment of the folded antenna element 110 of the third embodiment, but differs in that arranged in zigzag from the base to the first fold point. 另外,一个鞭状天线元件144提供在杆状天线元件142的基座侧处,并且一个圆柱形天线元件146从鞭状天线元件144的末端侧覆盖着鞭状天线元件144,以便象望远镜那样可在轴向自由运动。 Furthermore, a whip antenna element 144 is provided at the base side of the rod antenna element 142, and a cylindrical antenna element 146 covers the whip antenna element 144 from the distal end 144 of the whip antenna element side, so that the telescope can be as freedom of movement in the axial direction. 此外,一个导电材料的板簧148提供在鞭状天线元件144的末端处,并且弹性地接触圆柱形天线元件146的内壁,从而建立电气连接。 Further, the plate spring 148 of a conductive material provided at the end of the whip antenna element 144, and elastically contacts the inner wall of the cylindrical antenna element 146, so as to establish electrical connection. 然后,在天线伸出状态下,当杆状天线元件142延长时,把从折叠式天线元件140的基座到杆状天线元件142的末端的有效长度设置为第一频率f1波长的四分之一、和第二频率f2波长的四分之三。 Then, in the antenna extended state, when the rod antenna element 142 is extended, the effective length from the base of the folded antenna element 140 to the end of the rod antenna element 142 is set to a quarter wavelength of a first frequency f1 of a, and three quarters of the wavelength of the second frequency f2. 这种调节以与第一实施例中相同的方式进行。 This adjustment in the same manner in the first embodiment.

根据图17a和图17b中所示的构造,当天线在存储状态和伸出状态下时,第一频率f1和第二频率f2皆谐振,使发送和接收成为可能。 The configuration shown in FIG. 17a and FIG. 17b, when the antenna extended state and the stored state, the first frequency f1 and second frequency f2 are resonant, transmission and reception become possible. 并且,在天线存储状态下,由于鞭状天线元件144的大部分存在放圆柱形天线元件146的内部,所以杆状天线元件142的总长度较短。 Further, in the antenna stored state, since most of the presence of the whip antenna element 144 is put inside the cylindrical antenna element 146, the total length of the rod antenna element 142 is short.

其次,参照图18解释使用以上自由伸出和存储的天线的无线电设备的结构。 Next, with reference to FIG 18 explained using the above freely extendable structure and a radio antenna apparatus is stored. 图18是提供在一种无线电设备中的本发明的一种可自由伸出和存储的天线、在干扰伸出状态下的主要零件的纵向剖视图。 FIG 18 is provided in one kind in a radio apparatus in the present invention may be freely extendable and storable antenna, longitudinal sectional view of a main part in a state projected interference.

在图18中,一个由绝缘材料组成的圆柱形芯件182提供在一个由导电材料组成的大致圆柱形的供给金属部分180的末端侧。 In FIG 18, a cylindrical core member 182 made of an insulating material is provided at one end of a substantially cylindrical supply-feeding metal conductive material portion 180 side. 第一实施例的折叠式天线元件110,作为一个例子,绕芯件182的外表面提供,折叠式天线元件110的基座,比如通过焊接或类似方法,适当地电气连接到供给金属部分180上。 The folded antenna element 110 of the first embodiment, as one example, around the outer surface of the core member 182 provides the base of the folded antenna element 110, such as by welding or the like, is suitably electrically connected to the supply-feeding metal part 180 . 然后,一根C形树脂弹簧184提供在芯件182的末端,并且通过把一个覆盖件186的基座侧牢固地拧在供给金属部分180上,提供覆盖件186,覆盖件186由绝缘材料组成、盖住折叠式天线元件110的外缘,同时限制树脂弹簧184在轴向运动。 Then, a C-shaped resin spring 184 provided at the end of the core member 182, and the base side by a cover member 186 is securely screwed onto the supply-feeding metal part 180, there is provided the cover 186, the cover member 186 made of an insulating material to cover the outer edge of the folded antenna element 110 while limiting the movement of the resin spring 184 in the axial direction. 一个具有较小半径末端侧的台阶182a提供在芯件182的内边缘上。 A step 182a having a smaller radius is provided on the end side of the inner edge of the core member 182.

另外,一个绝缘管188提供在一个由柔性和导电的导线状体组成的杆状天线元件112上方,比如如图14a-14c中所示的实施例中所示,并且一个由绝缘材料组成的挡块190提供在其基座处。 Block addition, one insulating tube 188 is provided over a rod antenna element of a flexible and conductive wire-like body 112 composed of, for example as shown in the embodiment shown in FIG. 14a-14c, and a composed of an insulating material block 190 provides at its base. 一个具有与挡块190相同半径的绝缘件192提供在杆状天线元件112的末端侧,并且一个顶部件194固定在绝缘件192的末端上。 A stopper having the same radius as the insulating member 190. At the end 192 side of the rodlike antenna element 112, and a top member 194 fixed to the end 192 of the insulating member. 然后,一个组件体,例如杆状天线元件112,集成到另一个组件体上,例如折叠式天线元件110上,以便在轴向自由运动。 Then, a component thereof, for example the rod antenna element 112, is integrated into the other components thereof, for example, a folded antenna element 110 so as to move freely in the axial direction. 而且,在挡块190处,芯件182的内边缘上的台阶182a防止杆状天线元件112在伸出方向滑出。 Further, a step on the inner edge of the stopper 190, the core member 182 prevents the rod 182a of the antenna element 112 from slipping out in the extend direction. 此外,C形树脂弹簧184弹性地卡入一个绕挡块190的外缘提供的槽中,以限制在轴向运动。 In addition, C-shaped resin spring 184 elastically snaps into a groove 190 around the outer edge of the stopper provided to limit axial movement. 因此,保持伸出状态。 Therefore, maintaining the extended state. 另外,一个顶部部分194防止在存储方向的运动。 Further, a top portion 194 prevents movement in the store direction. 此外,C形树脂弹簧184弹性地卡入一个绕绝缘件192的外缘提供的槽中,以限制在轴向运动。 In addition, C-shaped resin spring 184 elastically snaps into a groove around the outer periphery of the insulating member 192 is provided to limit axial movement. 因此,保持存储状态。 Thus, to maintain the storage state.

另外,一个由导电材料组成的供给接收件198穿过一个无线电机壳196的一个侧壁提供给无线电机壳196。 Further, a conductive material is supplied to a receiving member 198 through a sidewall 196 of a radio cabinet 196 is provided to a radio cabinet. 在无线电机壳196内,适当地提供一块用来安装一个无线电电路150(在图18中末表示)等的电路板200,并且一个提供给电路板200的供给板簧202弹性地接触伸进无线电机壳196的供给接收件198。 In the radio housing 196, a suitably provided for mounting a radio circuit 150 (shown in FIG end 18) of the circuit board 200 and the like, and a feed circuit board 200 is provided to the plate spring 202 elastically contacts extend into radio supplying chassis 196 receiver 198. 供给板簧202当然适当地电气连接到无线电电路150上。 Of course, the supply plate spring 202 is suitably electrically connected to the radio circuit 150. 这里,通过把供给金属部分180拧到供给接收部分198上,把折叠式天线元件110的基座,经供给金属部分180和供给接收部分198及供给板簧202,电气连接到在无线电电路板200上安装的无线电电路150上,由此形成一种无线电设备。 Here, by supplying the metal portion 180 is screwed to the supply-receiving part 198, the base of the folded antenna element 110, and receives the supply portion 180 supplying a metal plate spring 202 and the feeding portion 198 electrically connected to the circuit board 200 in the radio 150, thereby to form a radio circuit on the radio device is installed.

折叠式天线元件的结构不限于上述的实施例。 Structure of the folded antenna element is not limited to the embodiments described above. 仅需要通过四分之一波长或四分之三波长的有效长度能使第一频率f1和第二频率f2谐振。 It is only necessary to make the first frequency f1 and the second resonance frequency f2 by the effective length of a quarter wavelength or three quarters of a wavelength. 另外,杆状天线元件的结构不限于上述的实施例。 Further, the structure of the rod antenna element is not limited to the embodiments described above. 仅需要外部是杆状的。 It requires only an external rod-shaped. 另外,圆柱形天线元件146不限于如第三实施例中那样的一级,而可以包括多级。 Further, the cylindrical antenna element 146 is not limited to the embodiment as in the third embodiment as one, and may include multiple stages. 而且,在图18中所示的无线电设备中,能容易地理解,如果供给金属部分180和供给接收部分198及供给板簧202提供天线功能,则起折叠式天线元件作用的基座本身不是物理基座,而是供给板簧202与电路板200之间的连接点。 Further, in the radio apparatus shown in FIG. 18, it can be readily appreciated, if the supply-feeding metal part 180 and a supply receiving portion 198 and the supply plate spring 202 provide the antenna function, since the folded antenna element of the base is not itself a physical acting base, but the connection point between the supply plate spring 202 and the circuit board 200.

尽管已经描述了当前想到的本发明最佳实施例,但可以理解,对其能进行各种改进,并且打算在附属权利要求书中覆盖所有这些落入本发明真正精神和范围内的改进。 While there have been described the currently preferred embodiments of the present invention is contemplated, it will be appreciated that various modifications thereof can be performed, and it is intended to cover all of these fall within the true spirit of the present invention and modifications within the scope of the accompanying claims.

Claims (8)

1.一种折叠式天线,其特征在于包括:一个第一元件,包括一个线状或带状导体,该导体提供在从天线基座指向其末端侧的方向上,所述导体在所述末端侧至少折叠一次,并且平行于所述方向布置;一个第二元件,包括在所述基座与所述末端侧处的第一折叠点之间的一个点处、或在所述第一折叠点处分开的导体,并且所述导体至少折叠一次且平行于所述方向布置;设置从所述基座到所述第一元件末端的有效长度,使第一频率谐振,并且设置从所述基座到所述第二元件末端的有效长度,使第二频率谐振。 A folded antenna, comprising: a first element, comprising a wire or strip conductor which is provided in the direction toward its distal end side from the antenna base, the end of said conductor side folded at least once and arranged parallel to said direction; a second element, comprising at a point between the base and the first fold point at said tip side, or at the first fold point open disposition conductor, and the conductor is folded at least once and arranged parallel to said direction; disposed from said base to said first member end of the effective length of the first resonance frequency, and is provided from the base the effective length of the second element end, the second resonance frequency.
2.一种折叠式天线,其特征在于包括:一个第一元件,包括一个线状或带状导体,该导体提供在从天线基座指向其末端侧的方向上,所述导体在所述末端侧和在所述基座侧顺序折叠不少于一次,并且平行于所述方向布置;一个第二元件,包括在所述基座与所述末端侧处的第一折叠点之间的一个点处、或在所述第一折叠点处分开的导体,并且所述导体在所述末端侧和所述基座侧顺序折叠不少于一次,且平行于所述方向布置;设置从所述基座到所述第一元件末端的有效长度,使第一频率谐振,并且设置从所述基座到所述第二元件末端的有效长度,使第二频率谐振。 A folded antenna, comprising: a first element, comprising a wire or strip conductor which is provided in the direction toward its distal end side from the antenna base, the end of said conductor side and a side of the base of the folded sequentially not less than once, and arranged parallel to said direction; a second member, comprising a point between the base and the first fold point at said tip side at the first fold point or open disposition conductor and said side conductor folded sequentially not less than once at the tip side and the base, and is arranged parallel to said direction; provided from the base the effective length of the first seat element ends, the first resonance frequency, and set the effective length from said base to a tip of said second element, the second resonance frequency.
3.根据权利要求1或2所述的折叠式天线,其中所述导体以之字形从所述基座到所述末端侧处的第一折叠点提供。 The folded antenna according to claim 1 or claim 2, wherein said conductor is provided in zigzag from said base to a first fold point at the tip side.
4.根据权利要求1或2所述的折叠式天线,其中用于所述第一频率的从所述基座到所述第一元件末端的有效长度、和用于所述第二频率的从所述基座到所述第二元件末端的有效长度如此设置,以致在所述基座处其各输入/输出阻抗基本相同。 From the folded antenna according to claim 1 or claim 2, wherein the means for the effective length from said base to a tip of said first element of said first frequency and a second frequency for the the base element to the effective length of the second end of the set so that the base at each of its input / output impedance is substantially the same.
5.根据权利要求1或2所述的折叠式天线,进一步包括:一个第三元件,其中所述导体在所述末端侧分开,并且在所述方向上排列,从所述基座到所述第三元件末端的有效长度如此设置,以致一个独立频率谐振。 The folded antenna according to claim 1 or claim 2, further comprising: a third element, wherein the end side of the conductor separated, and arranged in the direction from the base to the the effective length of the third element tip set so that a resonant frequency independent.
6.根据权利要求1或2所述的折叠式天线,其中对于一个第一频率,从所述基座到所述第一元件末端的有效长度设置为波长的四分之一;而对于一个独立频率,从所述基座到所述第一折叠点的有效长度设置为波长的四分之一,而从所述基座到所述第一元件末端的有效长度设置为波长的四分之三。 The folded antenna according to claim 1 or claim 2, wherein for a first frequency, the effective length from said base to said first member end disposed to a quarter wavelength; for a separate frequency, from said base to said first fold point is set to the effective length of a quarter wavelength, and the effective length from said base to said provided first end element is three quarters of the wavelength .
7.根据权利要求1至6中任一项所述的折叠式天线,其中折叠式天线以圆柱形状提供,该圆柱使其轴处在从所述基座到末端侧的方向上。 1-6 The folded antenna according to any of claims, wherein the folded antenna provided in a cylindrical shape, so that the cylinder axis in a direction from the base to the tip side.
8.根据权利要求1至7中任一项所述的折叠式天线,其中所述元件通过密封材料的压制而形成,并且使用覆盖带粘贴在一个芯件边缘的上方。 1 folded antenna according to any one of claim 7, wherein said pressing member through the sealing material is formed, and the cover using a tape to the top edge of the core member.
CN98123804A 1998-04-30 1998-10-30 Folded antenna CN1117410C (en)

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JP10136000A JPH11317612A (en) 1998-04-30 1998-04-30 Folded antenna, antenna device and radio equipment
JP22370198A JP3983384B2 (en) 1998-07-23 1998-07-23 Drawer retractable antenna and radio

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CN1516511A (en) 2004-07-28
US6130651A (en) 2000-10-10

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